The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 21, 2012
Filed:
Jun. 13, 2008
Minggao Yao, Dongguan, CN;
MingGao Yao, Dongguan, CN;
SAE Magnetics (H.K.) Ltd., Hong Kong, CN;
Abstract
A HGA includes a suspension, a seed layer formed on a PZT holding region of a flexure of the suspension and a piezoelectric element deposited on the seed layer. The piezoelectric element is electrically connected with the suspension to form a PZT micro-actuator. The present invention simultaneously conducts the manufacture, mechanical assembly and electrical connection of the piezoelectric element and suspension, thus the present invention has simple operation process and short process time, high manufacture yield, sound mechanical, dynamic and static performance. In addition, the present invention firstly forms the seed layer on the flexure and secondly forms the piezoelectric element on the seed layer, wherein the seed layer is metallic material, metal oxide, non-metallic material, or inorganic salt, the seed layer enables to easily control the operation and assists to improve the performance of the HGA. Besides, the electrical connection between the piezoelectric element and the suspension could be performed by sputtering process, printing process, or plating process, thus the present invention has a less difficulty to operate and sound connection reliability. The present invention also discloses a method for manufacturing the HGA and a disk drive unit.